Even if that were not the case, it's abundantly clear that geometrically increasing consolidated economic power is being translated into consolidated raw political power (which is zero sum). The events of the last few months and history in general have proved that this is very, very dangerous.
We couldn't play flappy birds on a mini computer in our pockets in 1970, though, so I guess that makes all that r>g and compound interest accumulating in 0.1% pockets worthwhile.